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  1. Mercury unit mounted to a nozzle

    Cobra Jet Steering for Mercury Optimax Engines

    MSRP: $329.99

    Buy Direct Discount Price only $209.99

    MSRP: Single-Engine: $329.99

    SAVE $$ BY ORDERING DIRECT FROM THE MANUFACTURER!
    Buy Direct Discount Price: 
       -- Single-Engine: $209.99

    High performance steering for your boat equipped with a Mercury Optimax or similar jet drive

    Learn More
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Testimonials
  • Hi Jeff - I installed the Cobra Jet Venom Ultimate fins last week. The difference in handling is night and day. Prior to the installation, my 2014 Yamaha SX 190 was very hard to steer at low speed bec...

    Pete Brown

  • i found Jeff's website through a search for upgrades and read the page, then i called Jeff and had a nice conversation relating to the product. i then purchased a unit and have recently operated my sk...

    Jim

  • I too had a miserable time docking or re-trailering my 21 foot twin jet boat without the cobra system. Jeff shipped me a set quickly and now its like night and day at slow or fast speeds. I would reco...

    Dave Richardson

  • We are senior citizens and decided to purchase a jet ski to help entertain our grandchildren. We purchased one with the Cobra Steering from Jeff. It is unbelievable! Now my wife wants her own. The ste...

    Paul and Pam

  • I have the CJS venom viper kit and I can assure you the kit performs exceptionally well. The attitude of the boat is completely changed on plane. It cuts through the water rather than on top. No mor...

    via JetBoaters.net Forum

  • This was the best thing I have ever done to my jet ski! I get out of the water faster, have more control and boy is it fun. I highly recommend this product. Ride Hard!

    Ride Hard

  • Testimonial for the Mercury Optimax system:

    Thanks much. Your invention saved my relationship! (with my new/used jet boat). During 15 years of owning two I/O's, I was careful (and ...

    email to CJS

  • I spent 7 hours on the lake today fishing. The Viper is the single best piece of equipment I've purchased for this boat. I highly recommend it. Spent a lot of the time at idle fishing and can say ...

    from JetBoaters.net forums

  • Just thought I would let you know that we love the cobra jets. My mom will actually drive the boat now!! Thank you!

    via email to CJS

  • Hey Jeff, Installed them (Cobra Magnum AK and Fangs) in a jiffy! Had a little issue with the stock starboard tie rod bolt on the jet, they had locktite on the tie rod side and took a bit of work to...

    via email to CJS

  • Customer review sent to me on the new Ultimate A K steering with mega fang plus compared to the thrust vector steering on a 21 foot yamaha the articulating kee...

    email to CJS

  • Just got back from towsurfing one of the outer reefs - wasn't real big but double to triple overhead (15 to 20' faces) and the ski worked GREAT! Comin' in hot to pick up my partner after he wiped out ...

    Peter

  • All I can say is wow! My wife and I purchased a 2000 seadoo challenger in March. Docking was a nightmare, I was absoulutly scared to death to pull into the launch ramp sometimes even jumping out of th...

    Aaron in Ohio

  • I am the individual who allowed my 2004 sea doo to be photographed and displayed on this web site. I consider myself to be a serious jet skier and have been for nine years. After purchasing my newest ...

    Ed

  • It's hard to believe that such a small incremental expense can drastically change the overall performance of the entire experience. I am not a professional rider, in fact this is my first ski. I had i...

    Brad Buchmann

  • I recently purchased the Cobra Jet Steering for my polaris after Jeff informed me of the capabilities that this would give any rider on my ski. I personally was tired of the fact that the Polaris woul...

    Dan Solie

  • I just purchased a 2003 Yamaha SR230, and did some research reference steering and all I read were horror stories so I decided to purchase the cobra mega fins, before I even put it in the water. Fir...

    Juan

    deplaz1@verizon.net
  • I tried your steering kit on my quick-handling XP. I am amazed that something that looks small and inconsequential can make such a difference. This ski can be punishing in chop and at high speed becau...

    Bill Baker

  • OMG the difference! My husband and I recently bought a jet boat. We had several crashes at the marina where we docked the boat. I found the cobra steering fins. I mailed my nozzle to Jeff for my insta...

    Tracy Ftaiti

  • Installed the ultimate and fangs on my 2015 yamaha ar230. Easy install. Noticed the difference backing the boat off the trailer, straight as can be. We have a long no wake zone, the boat was much easi...

    William Eaton

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